We've used a 1506 in a CRT .5 and the Hot Bodies 10. It's a great motor, plenty of power. I can't remember what wind 1506 we were running, (maybe that 5500 one) but we ran the LS10 on 2s and 3s, motor never got hot at all. 2s was perfect track speed and 3s was just a blast to run.
I recently got a HB GT10 myself, and I have to say that even with the much larger tires the truck is just a little lighter and much less taxing on the motor.
Feel free to give the 1506 a try but I would shoot for a 1509. Maybe a 2D @ 3300kv or a 2.5D @ 2700kv for 3S.
“Everyone has a right to be stupid; some people just abuse the privilege.”